G IIB Performance

[K.V.]

we have a III with hush kits, flown it all over the world, never had a problem. It is all in how you fly it. Use Flex power for TO's when you can and get your foot our of it asap and you won't have too many problems. Lots of power and goes a long way, 7 hrs you will land with about 4000 lbs, oh yeah and makes a lot of smoke.

Even though it sounds kind of backwards, using Min EPR for departures is the proper procedure for "quiet flying". The logic behind it is that you get up sooner and leave the "noise" on the airfield. Also, once airborne it gives you the shortest horizontal distance before reducing to climb power, which saves you from ringing the bell at the end of the runway.

 

[Deskdriver101]

If noise is an issue (and it will be), make sure it has been updated w/stage III hush kits, most 1159's have "hush kits" but they are the air diffuser cookie cutter things that allowed the aircraft to meet stage II noise requirements back in the 80's
Stage III hush kits add approx $500 - $700 to the price of the aircraft and I believe there is also a slight performance penalty. GII's driver's help me out on that

 

[PlaneStupid]

With the price of a G4 now, why not go that direction? A IIB is cheap, but could cost more in the operating costs in the long run.

 

[cyork25]

I can buy that and I believe you could be right. But, I also believe the hushkits are certified stage III at all temps and weights. Thus making it quieter to apply less power through the takeoff, given that using flex power is just like flying it at a higher temp. It is easier on the machine and makes less total noise to use flex power, that is why we do it. These birds are old, they need to be babied.

Even though it sounds kind of backwards, using Min EPR for departures is the proper procedure for "quiet flying". The logic behind it is that you get up sooner and leave the "noise" on the airfield. Also, once airborne it gives you the shortest horizontal distance before reducing to climb power, which saves you from ringing the bell at the end of the runway.

 

[TimsKeeper]

takeoff

The noise considerations aren't with the "take-off", it's with the climb-out. The Gulfstream procedure for quiet flying is to use Min Epr to get you in the air as soon as possible.

If you are trying to do a quiet take-off using flex power in a GII/GIII (with or without hush kits) you haven't been paying attention in ground school. Get a copy of the noise manual somone referred to earlier in this thread...it's good information on specific departures. If noise isn't a consideration then yeah, I fully agree, flex it.

 

[cyork25]

Actually, if you want to get down to it, it is airport specific. Given that the normal technique is to use Min EPR. But, airports such as New Haven, rwy 15 at Burbank, etc, all recomend using a max flex technique. I was simply saying that on a day to day basis it is probably best to use a flex quiet climb and mind your airport specific guidance. I guess it seems that maybe I have been paying more attention than you my friend.

 

[jet2work]

Here is a link to the Gulfstream noise manual. It includes restrictions at specific airports and how it affects each Gulfstream type (ie if a GIIB would be prohibited or during which hours it's retricted etc.). A quick glance also shows that the GIIB produces about 83dB on takeoff. The Noise Abatement procedure says that it is applicable to the GIV and GV. For the GIIB you want to find AFM Supplement GIIB-OIS-8. I don't fly the II so I don't have it. I tried to find it for you on mygulfstream.com, but this is what I came up with. Good luck.

http://www.gulfstream.com/product_support/technical_pubs/pdfs/noisemanual.pdf

 

[Fly91]

Bro.....forget the GII. There are Challenger 601's out there for $1.4 million that are NICE. Screw those old piles. They are ridiculous gas hogs.

 

[jet2work]

Bro.....forget the GII. There are Challenger 601's out there for $1.4 million that are NICE. Screw those old piles. They are ridiculous gas hogs.

I agree, But when I used to tell the ladies I was flying a Challenger, they just shrugged. When I say Gulfstream, you can see physiological signs of arousal. 60% of the time it works every time.imp:

 

[Fly91]

I agree, But when I used to tell the ladies I was flying a Challenger, they just shrugged. When I say Gulfstream, you can see physiological signs of arousal. 60% of the time it works every time.imp:

lol

But in all seriousness, there's chicks all over the place that are willing to bend over for us pilots....hahaha

Why don't you be a hero and tell your boss to get a Challenger 601 for probably close to the same price as a GIIB.......but he'll have a plane that is huge inside, damn good range, will burn a TON less fuel and do it all while being nice and quiet.

 

[FO4life]

i just drive.